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include/net/cfg80211.h: Add wiphy_<level> printk equivalents
[net-next-2.6.git] / drivers / net / wireless / at76c50x-usb.c
CommitLineData
1264b951
KV		 1/*
2 * at76c503/at76c505 USB driver
3 *
4 * Copyright (c) 2002 - 2003 Oliver Kurth
5 * Copyright (c) 2004 Joerg Albert <joerg.albert@gmx.de>
6 * Copyright (c) 2004 Nick Jones
7 * Copyright (c) 2004 Balint Seeber <n0_5p4m_p13453@hotmail.com>
8 * Copyright (c) 2007 Guido Guenther <agx@sigxcpu.org>
9 * Copyright (c) 2007 Kalle Valo <kalle.valo@iki.fi>
a185045c 10 * Copyright (c) 2010 Sebastian Smolorz <sesmo@gmx.net>
1264b951
KV		 11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
16 *
17 * This file is part of the Berlios driver for WLAN USB devices based on the
18 * Atmel AT76C503A/505/505A.
19 *
20 * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed
21 *
ba3907e5
KV		 22 * TODO list is at the wiki:
23 *
24 * http://wireless.kernel.org/en/users/Drivers/at76c50x-usb#TODO
25 *
1264b951
KV		 26 */
27
28#include <linux/init.h>
29#include <linux/kernel.h>
30#include <linux/sched.h>
31#include <linux/errno.h>
32#include <linux/slab.h>
33#include <linux/module.h>
34#include <linux/spinlock.h>
35#include <linux/list.h>
36#include <linux/usb.h>
37#include <linux/netdevice.h>
38#include <linux/if_arp.h>
39#include <linux/etherdevice.h>
40#include <linux/ethtool.h>
41#include <linux/wireless.h>
42#include <net/iw_handler.h>
43#include <net/ieee80211_radiotap.h>
44#include <linux/firmware.h>
45#include <linux/leds.h>
46#include <net/mac80211.h>
47
48#include "at76c50x-usb.h"
49
50/* Version information */
51#define DRIVER_NAME "at76c50x-usb"
52#define DRIVER_VERSION "0.17"
53#define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver"
54
55/* at76_debug bits */
56#define DBG_PROGRESS 0x00000001 /* authentication/accociation */
57#define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */
58#define DBG_IOCTL 0x00000004 /* ioctl calls / settings */
59#define DBG_MAC_STATE 0x00000008 /* MAC state transitions */
60#define DBG_TX_DATA 0x00000010 /* tx header */
61#define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */
62#define DBG_TX_MGMT 0x00000040 /* tx management */
63#define DBG_RX_DATA 0x00000080 /* rx data header */
64#define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */
65#define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */
66#define DBG_RX_BEACON 0x00000400 /* rx beacon */
67#define DBG_RX_CTRL 0x00000800 /* rx control */
68#define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */
69#define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */
70#define DBG_DEVSTART 0x00004000 /* fw download, device start */
71#define DBG_URB 0x00008000 /* rx urb status, ... */
72#define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */
73#define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */
74#define DBG_PM 0x00040000 /* power management settings */
75#define DBG_BSS_MATCH 0x00080000 /* BSS match failures */
76#define DBG_PARAMS 0x00100000 /* show configured parameters */
77#define DBG_WAIT_COMPLETE 0x00200000 /* command completion */
78#define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */
79#define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */
80#define DBG_MONITOR_MODE 0x01000000 /* monitor mode */
81#define DBG_MIB 0x02000000 /* dump all MIBs on startup */
82#define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */
83#define DBG_WE_EVENTS 0x08000000 /* dump wireless events */
84#define DBG_FW 0x10000000 /* firmware download */
85#define DBG_DFU 0x20000000 /* device firmware upgrade */
86#define DBG_CMD 0x40000000
87#define DBG_MAC80211 0x80000000
88
89#define DBG_DEFAULTS 0
90
91/* Use our own dbg macro */
92#define at76_dbg(bits, format, arg...) \
93 do { \
94 if (at76_debug & (bits)) \
95 printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \
96 ## arg); \
97 } while (0)
98
99#define at76_dbg_dump(bits, buf, len, format, arg...) \
100 do { \
101 if (at76_debug & (bits)) { \
102 printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \
103 ## arg); \
104 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, \
105 buf, len); \
106 } \
107 } while (0)
108
2ce4f9d8 109static uint at76_debug = DBG_DEFAULTS;
1264b951
KV		 110
111/* Protect against concurrent firmware loading and parsing */
112static struct mutex fw_mutex;
113
114static struct fwentry firmwares[] = {
115 [0] = { "" },
116 [BOARD_503_ISL3861] = { "atmel_at76c503-i3861.bin" },
117 [BOARD_503_ISL3863] = { "atmel_at76c503-i3863.bin" },
118 [BOARD_503] = { "atmel_at76c503-rfmd.bin" },
119 [BOARD_503_ACC] = { "atmel_at76c503-rfmd-acc.bin" },
120 [BOARD_505] = { "atmel_at76c505-rfmd.bin" },
121 [BOARD_505_2958] = { "atmel_at76c505-rfmd2958.bin" },
122 [BOARD_505A] = { "atmel_at76c505a-rfmd2958.bin" },
123 [BOARD_505AMX] = { "atmel_at76c505amx-rfmd.bin" },
124};
202982db
BH		 125MODULE_FIRMWARE("atmel_at76c503-i3861.bin");
126MODULE_FIRMWARE("atmel_at76c503-i3863.bin");
127MODULE_FIRMWARE("atmel_at76c503-rfmd.bin");
128MODULE_FIRMWARE("atmel_at76c503-rfmd-acc.bin");
129MODULE_FIRMWARE("atmel_at76c505-rfmd.bin");
130MODULE_FIRMWARE("atmel_at76c505-rfmd2958.bin");
131MODULE_FIRMWARE("atmel_at76c505a-rfmd2958.bin");
132MODULE_FIRMWARE("atmel_at76c505amx-rfmd.bin");
1264b951
KV		 133
134#define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops)
135
136static struct usb_device_id dev_table[] = {
137 /*
138 * at76c503-i3861
139 */
140 /* Generic AT76C503/3861 device */
141 { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) },
142 /* Linksys WUSB11 v2.1/v2.6 */
143 { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) },
144 /* Netgear MA101 rev. A */
145 { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) },
146 /* Tekram U300C / Allnet ALL0193 */
147 { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) },
148 /* HP HN210W J7801A */
149 { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) },
150 /* Sitecom/Z-Com/Zyxel M4Y-750 */
151 { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) },
152 /* Dynalink/Askey WLL013 (intersil) */
153 { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) },
154 /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */
155 { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) },
156 /* BenQ AWL300 */
157 { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) },
158 /* Addtron AWU-120, Compex WLU11 */
159 { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) },
160 /* Intel AP310 AnyPoint II USB */
161 { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) },
162 /* Dynalink L11U */
163 { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) },
164 /* Arescom WL-210, FCC id 07J-GL2411USB */
165 { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) },
166 /* I-O DATA WN-B11/USB */
167 { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) },
168 /* BT Voyager 1010 */
169 { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) },
170 /*
171 * at76c503-i3863
172 */
173 /* Generic AT76C503/3863 device */
174 { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) },
175 /* Samsung SWL-2100U */
176 { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) },
177 /*
178 * at76c503-rfmd
179 */
180 /* Generic AT76C503/RFMD device */
181 { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) },
182 /* Dynalink/Askey WLL013 (rfmd) */
183 { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) },
184 /* Linksys WUSB11 v2.6 */
185 { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) },
186 /* Network Everywhere NWU11B */
187 { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) },
188 /* Netgear MA101 rev. B */
189 { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) },
190 /* D-Link DWL-120 rev. E */
191 { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) },
192 /* Actiontec 802UAT1, HWU01150-01UK */
193 { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) },
194 /* AirVast W-Buddie WN210 */
195 { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) },
196 /* Dick Smith Electronics XH1153 802.11b USB adapter */
197 { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) },
198 /* CNet CNUSB611 */
199 { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) },
200 /* FiberLine FL-WL200U */
201 { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) },
202 /* BenQ AWL400 USB stick */
203 { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) },
204 /* 3Com 3CRSHEW696 */
205 { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) },
206 /* Siemens Santis ADSL WLAN USB adapter WLL 013 */
207 { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) },
208 /* Belkin F5D6050, version 2 */
209 { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) },
210 /* iBlitzz, BWU613 (not *B or *SB) */
211 { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) },
212 /* Gigabyte GN-WLBM101 */
213 { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) },
214 /* Planex GW-US11S */
215 { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) },
216 /* Internal WLAN adapter in h5[4,5]xx series iPAQs */
217 { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) },
218 /* Corega Wireless LAN USB-11 mini */
219 { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) },
220 /* Corega Wireless LAN USB-11 mini2 */
221 { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) },
222 /* Uniden PCW100 */
223 { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) },
224 /*
225 * at76c503-rfmd-acc
226 */
227 /* SMC2664W */
228 { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) },
229 /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */
230 { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) },
231 /*
232 * at76c505-rfmd
233 */
234 /* Generic AT76C505/RFMD */
235 { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) },
236 /*
237 * at76c505-rfmd2958
238 */
239 /* Generic AT76C505/RFMD, OvisLink WL-1130USB */
240 { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) },
241 /* Fiberline FL-WL240U */
242 { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) },
243 /* CNet CNUSB-611G */
244 { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) },
245 /* Linksys WUSB11 v2.8 */
246 { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) },
247 /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */
248 { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) },
249 /* Corega WLAN USB Stick 11 */
250 { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) },
251 /* Microstar MSI Box MS6978 */
252 { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) },
253 /*
254 * at76c505a-rfmd2958
255 */
256 /* Generic AT76C505A device */
257 { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) },
258 /* Generic AT76C505AS device */
259 { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) },
260 /* Siemens Gigaset USB WLAN Adapter 11 */
261 { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) },
02a9a392
JL		 262 /* OQO Model 01+ Internal Wi-Fi */
263 { USB_DEVICE(0x1557, 0x0002), USB_DEVICE_DATA(BOARD_505A) },
1264b951
KV		 264 /*
265 * at76c505amx-rfmd
266 */
267 /* Generic AT76C505AMX device */
268 { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) },
269 { }
270};
271
272MODULE_DEVICE_TABLE(usb, dev_table);
273
274/* Supported rates of this hardware, bit 7 marks basic rates */
275static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 };
276
277static const char *const preambles[] = { "long", "short", "auto" };
278
279/* Firmware download */
280/* DFU states */
281#define STATE_IDLE 0x00
282#define STATE_DETACH 0x01
283#define STATE_DFU_IDLE 0x02
284#define STATE_DFU_DOWNLOAD_SYNC 0x03
285#define STATE_DFU_DOWNLOAD_BUSY 0x04
286#define STATE_DFU_DOWNLOAD_IDLE 0x05
287#define STATE_DFU_MANIFEST_SYNC 0x06
288#define STATE_DFU_MANIFEST 0x07
289#define STATE_DFU_MANIFEST_WAIT_RESET 0x08
290#define STATE_DFU_UPLOAD_IDLE 0x09
291#define STATE_DFU_ERROR 0x0a
292
293/* DFU commands */
294#define DFU_DETACH 0
295#define DFU_DNLOAD 1
296#define DFU_UPLOAD 2
297#define DFU_GETSTATUS 3
298#define DFU_CLRSTATUS 4
299#define DFU_GETSTATE 5
300#define DFU_ABORT 6
301
302#define FW_BLOCK_SIZE 1024
303
304struct dfu_status {
305 unsigned char status;
306 unsigned char poll_timeout[3];
307 unsigned char state;
308 unsigned char string;
ba2d3587 309} __packed;
1264b951
KV		 310
311static inline int at76_is_intersil(enum board_type board)
312{
313 return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863);
314}
315
316static inline int at76_is_503rfmd(enum board_type board)
317{
318 return (board == BOARD_503 || board == BOARD_503_ACC);
319}
320
321static inline int at76_is_505a(enum board_type board)
322{
323 return (board == BOARD_505A || board == BOARD_505AMX);
324}
325
326/* Load a block of the first (internal) part of the firmware */
327static int at76_load_int_fw_block(struct usb_device *udev, int blockno,
328 void *block, int size)
329{
330 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD,
331 USB_TYPE_CLASS | USB_DIR_OUT |
332 USB_RECIP_INTERFACE, blockno, 0, block, size,
333 USB_CTRL_GET_TIMEOUT);
334}
335
336static int at76_dfu_get_status(struct usb_device *udev,
337 struct dfu_status *status)
338{
339 int ret;
340
341 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS,
342 USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
343 0, 0, status, sizeof(struct dfu_status),
344 USB_CTRL_GET_TIMEOUT);
345 return ret;
346}
347
348static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state)
349{
350 int ret;
351
352 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE,
353 USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
354 0, 0, state, 1, USB_CTRL_GET_TIMEOUT);
355 return ret;
356}
357
358/* Convert timeout from the DFU status to jiffies */
359static inline unsigned long at76_get_timeout(struct dfu_status *s)
360{
361 return msecs_to_jiffies((s->poll_timeout[2] << 16)
362 | (s->poll_timeout[1] << 8)
363 | (s->poll_timeout[0]));
364}
365
366/* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use
367 * its value in jiffies in the MANIFEST_SYNC state. */
368static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size,
369 int manifest_sync_timeout)
370{
371 u8 *block;
372 struct dfu_status dfu_stat_buf;
373 int ret = 0;
374 int need_dfu_state = 1;
375 int is_done = 0;
376 u8 dfu_state = 0;
377 u32 dfu_timeout = 0;
378 int bsize = 0;
379 int blockno = 0;
380
381 at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size,
382 manifest_sync_timeout);
383
384 if (!size) {
385 dev_printk(KERN_ERR, &udev->dev, "FW buffer length invalid!\n");
386 return -EINVAL;
387 }
388
389 block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL);
390 if (!block)
391 return -ENOMEM;
392
393 do {
394 if (need_dfu_state) {
395 ret = at76_dfu_get_state(udev, &dfu_state);
396 if (ret < 0) {
397 dev_printk(KERN_ERR, &udev->dev,
398 "cannot get DFU state: %d\n", ret);
399 goto exit;
400 }
401 need_dfu_state = 0;
402 }
403
404 switch (dfu_state) {
405 case STATE_DFU_DOWNLOAD_SYNC:
406 at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC");
407 ret = at76_dfu_get_status(udev, &dfu_stat_buf);
408 if (ret >= 0) {
409 dfu_state = dfu_stat_buf.state;
410 dfu_timeout = at76_get_timeout(&dfu_stat_buf);
411 need_dfu_state = 0;
412 } else
413 dev_printk(KERN_ERR, &udev->dev,
414 "at76_dfu_get_status returned %d\n",
415 ret);
416 break;
417
418 case STATE_DFU_DOWNLOAD_BUSY:
419 at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY");
420 need_dfu_state = 1;
421
422 at76_dbg(DBG_DFU, "DFU: Resetting device");
423 schedule_timeout_interruptible(dfu_timeout);
424 break;
425
426 case STATE_DFU_DOWNLOAD_IDLE:
427 at76_dbg(DBG_DFU, "DOWNLOAD...");
428 /* fall through */
429 case STATE_DFU_IDLE:
430 at76_dbg(DBG_DFU, "DFU IDLE");
431
432 bsize = min_t(int, size, FW_BLOCK_SIZE);
433 memcpy(block, buf, bsize);
434 at76_dbg(DBG_DFU, "int fw, size left = %5d, "
435 "bsize = %4d, blockno = %2d", size, bsize,
436 blockno);
437 ret =
438 at76_load_int_fw_block(udev, blockno, block, bsize);
439 buf += bsize;
440 size -= bsize;
441 blockno++;
442
443 if (ret != bsize)
444 dev_printk(KERN_ERR, &udev->dev,
445 "at76_load_int_fw_block "
446 "returned %d\n", ret);
447 need_dfu_state = 1;
448 break;
449
450 case STATE_DFU_MANIFEST_SYNC:
451 at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC");
452
453 ret = at76_dfu_get_status(udev, &dfu_stat_buf);
454 if (ret < 0)
455 break;
456
457 dfu_state = dfu_stat_buf.state;
458 dfu_timeout = at76_get_timeout(&dfu_stat_buf);
459 need_dfu_state = 0;
460
461 /* override the timeout from the status response,
462 needed for AT76C505A */
463 if (manifest_sync_timeout > 0)
464 dfu_timeout = manifest_sync_timeout;
465
466 at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase");
467 schedule_timeout_interruptible(dfu_timeout);
468 break;
469
470 case STATE_DFU_MANIFEST:
471 at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST");
472 is_done = 1;
473 break;
474
475 case STATE_DFU_MANIFEST_WAIT_RESET:
476 at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET");
477 is_done = 1;
478 break;
479
480 case STATE_DFU_UPLOAD_IDLE:
481 at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE");
482 break;
483
484 case STATE_DFU_ERROR:
485 at76_dbg(DBG_DFU, "STATE_DFU_ERROR");
486 ret = -EPIPE;
487 break;
488
489 default:
490 at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state);
491 ret = -EINVAL;
492 break;
493 }
494 } while (!is_done && (ret >= 0));
495
496exit:
497 kfree(block);
498 if (ret >= 0)
499 ret = 0;
500
501 return ret;
502}
503
504#define HEX2STR_BUFFERS 4
505#define HEX2STR_MAX_LEN 64
506#define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10)
507
508/* Convert binary data into hex string */
509static char *hex2str(void *buf, int len)
510{
511 static atomic_t a = ATOMIC_INIT(0);
512 static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1];
513 char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)];
514 char *obuf = ret;
515 u8 *ibuf = buf;
516
517 if (len > HEX2STR_MAX_LEN)
518 len = HEX2STR_MAX_LEN;
519
520 if (len <= 0) {
521 ret[0] = '\0';
522 return ret;
523 }
524
525 while (len--) {
526 *obuf++ = BIN2HEX(*ibuf >> 4);
527 *obuf++ = BIN2HEX(*ibuf & 0xf);
528 *obuf++ = '-';
529 ibuf++;
530 }
531 *(--obuf) = '\0';
532
533 return ret;
534}
535
1264b951
KV		 536/* LED trigger */
537static int tx_activity;
538static void at76_ledtrig_tx_timerfunc(unsigned long data);
539static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0);
540DEFINE_LED_TRIGGER(ledtrig_tx);
541
542static void at76_ledtrig_tx_timerfunc(unsigned long data)
543{
544 static int tx_lastactivity;
545
546 if (tx_lastactivity != tx_activity) {
547 tx_lastactivity = tx_activity;
548 led_trigger_event(ledtrig_tx, LED_FULL);
549 mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4);
550 } else
551 led_trigger_event(ledtrig_tx, LED_OFF);
552}
553
554static void at76_ledtrig_tx_activity(void)
555{
556 tx_activity++;
557 if (!timer_pending(&ledtrig_tx_timer))
558 mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4);
559}
560
561static int at76_remap(struct usb_device *udev)
562{
563 int ret;
564 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a,
565 USB_TYPE_VENDOR | USB_DIR_OUT |
566 USB_RECIP_INTERFACE, 0, 0, NULL, 0,
567 USB_CTRL_GET_TIMEOUT);
568 if (ret < 0)
569 return ret;
570 return 0;
571}
572
573static int at76_get_op_mode(struct usb_device *udev)
574{
575 int ret;
5a2137dd
JA		 576 u8 saved;
577 u8 *op_mode;
1264b951 578
5a2137dd
JA		 579 op_mode = kmalloc(1, GFP_NOIO);
580 if (!op_mode)
581 return -ENOMEM;
1264b951
KV		 582 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
583 USB_TYPE_VENDOR | USB_DIR_IN |
5a2137dd 584 USB_RECIP_INTERFACE, 0x01, 0, op_mode, 1,
1264b951 585 USB_CTRL_GET_TIMEOUT);
5a2137dd
JA		 586 saved = *op_mode;
587 kfree(op_mode);
588
1264b951
KV		 589 if (ret < 0)
590 return ret;
591 else if (ret < 1)
592 return -EIO;
593 else
5a2137dd 594 return saved;
1264b951
KV		 595}
596
597/* Load a block of the second ("external") part of the firmware */
598static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno,
599 void *block, int size)
600{
601 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e,
602 USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
603 0x0802, blockno, block, size,
604 USB_CTRL_GET_TIMEOUT);
605}
606
607static inline int at76_get_hw_cfg(struct usb_device *udev,
608 union at76_hwcfg *buf, int buf_size)
609{
610 return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
611 USB_TYPE_VENDOR | USB_DIR_IN |
612 USB_RECIP_INTERFACE, 0x0a02, 0,
613 buf, buf_size, USB_CTRL_GET_TIMEOUT);
614}
615
616/* Intersil boards use a different "value" for GetHWConfig requests */
617static inline int at76_get_hw_cfg_intersil(struct usb_device *udev,
618 union at76_hwcfg *buf, int buf_size)
619{
620 return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
621 USB_TYPE_VENDOR | USB_DIR_IN |
622 USB_RECIP_INTERFACE, 0x0902, 0,
623 buf, buf_size, USB_CTRL_GET_TIMEOUT);
624}
625
626/* Get the hardware configuration for the adapter and put it to the appropriate
627 * fields of 'priv' (the GetHWConfig request and interpretation of the result
628 * depends on the board type) */
629static int at76_get_hw_config(struct at76_priv *priv)
630{
631 int ret;
632 union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL);
633
634 if (!hwcfg)
635 return -ENOMEM;
636
637 if (at76_is_intersil(priv->board_type)) {
638 ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg,
639 sizeof(hwcfg->i));
640 if (ret < 0)
641 goto exit;
642 memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN);
643 priv->regulatory_domain = hwcfg->i.regulatory_domain;
644 } else if (at76_is_503rfmd(priv->board_type)) {
645 ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3));
646 if (ret < 0)
647 goto exit;
648 memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN);
649 priv->regulatory_domain = hwcfg->r3.regulatory_domain;
650 } else {
651 ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5));
652 if (ret < 0)
653 goto exit;
654 memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN);
655 priv->regulatory_domain = hwcfg->r5.regulatory_domain;
656 }
657
658exit:
659 kfree(hwcfg);
660 if (ret < 0)
661 printk(KERN_ERR "%s: cannot get HW Config (error %d)\n",
662 wiphy_name(priv->hw->wiphy), ret);
663
664 return ret;
665}
666
667static struct reg_domain const *at76_get_reg_domain(u16 code)
668{
669 int i;
670 static struct reg_domain const fd_tab[] = {
671 { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */
672 { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */
673 { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */
674 { 0x31, "Spain", 0x600 }, /* ch 10-11 */
675 { 0x32, "France", 0x1e00 }, /* ch 10-13 */
676 { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */
677 { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */
678 { 0x50, "Israel", 0x3fc }, /* ch 3-9 */
679 { 0x00, "<unknown>", 0xffffffff } /* ch 1-32 */
680 };
681
682 /* Last entry is fallback for unknown domain code */
683 for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++)
684 if (code == fd_tab[i].code)
685 break;
686
687 return &fd_tab[i];
688}
689
690static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf,
691 int buf_size)
692{
693 int ret;
694
695 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
696 USB_TYPE_VENDOR | USB_DIR_IN |
697 USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size,
698 USB_CTRL_GET_TIMEOUT);
699 if (ret >= 0 && ret != buf_size)
700 return -EIO;
701 return ret;
702}
703
704/* Return positive number for status, negative for an error */
705static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd)
706{
5a2137dd 707 u8 *stat_buf;
1264b951
KV		 708 int ret;
709
5a2137dd
JA		 710 stat_buf = kmalloc(40, GFP_NOIO);
711 if (!stat_buf)
712 return -ENOMEM;
713
1264b951 714 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22,
5a2137dd
JA		 715 USB_TYPE_VENDOR | USB_DIR_IN |
716 USB_RECIP_INTERFACE, cmd, 0, stat_buf,
717 40, USB_CTRL_GET_TIMEOUT);
718 if (ret >= 0)
719 ret = stat_buf[5];
720 kfree(stat_buf);
1264b951 721
5a2137dd 722 return ret;
1264b951
KV		 723}
724
725#define MAKE_CMD_CASE(c) case (c): return #c
1264b951
KV		 726static const char *at76_get_cmd_string(u8 cmd_status)
727{
728 switch (cmd_status) {
729 MAKE_CMD_CASE(CMD_SET_MIB);
730 MAKE_CMD_CASE(CMD_GET_MIB);
731 MAKE_CMD_CASE(CMD_SCAN);
732 MAKE_CMD_CASE(CMD_JOIN);
733 MAKE_CMD_CASE(CMD_START_IBSS);
734 MAKE_CMD_CASE(CMD_RADIO_ON);
735 MAKE_CMD_CASE(CMD_RADIO_OFF);
736 MAKE_CMD_CASE(CMD_STARTUP);
737 }
738
739 return "UNKNOWN";
740}
741
5a2137dd 742static int at76_set_card_command(struct usb_device *udev, u8 cmd, void *buf,
1264b951
KV		 743 int buf_size)
744{
745 int ret;
746 struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) +
747 buf_size, GFP_KERNEL);
748
749 if (!cmd_buf)
750 return -ENOMEM;
751
752 cmd_buf->cmd = cmd;
753 cmd_buf->reserved = 0;
754 cmd_buf->size = cpu_to_le16(buf_size);
755 memcpy(cmd_buf->data, buf, buf_size);
756
757 at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size,
758 "issuing command %s (0x%02x)",
759 at76_get_cmd_string(cmd), cmd);
760
761 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e,
762 USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
763 0, 0, cmd_buf,
764 sizeof(struct at76_command) + buf_size,
765 USB_CTRL_GET_TIMEOUT);
766 kfree(cmd_buf);
767 return ret;
768}
769
770#define MAKE_CMD_STATUS_CASE(c) case (c): return #c
771static const char *at76_get_cmd_status_string(u8 cmd_status)
772{
773 switch (cmd_status) {
774 MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE);
775 MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE);
776 MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN);
777 MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER);
778 MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED);
779 MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT);
780 MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS);
781 MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE);
782 MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED);
783 }
784
785 return "UNKNOWN";
786}
787
788/* Wait until the command is completed */
789static int at76_wait_completion(struct at76_priv *priv, int cmd)
790{
791 int status = 0;
792 unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT;
793
794 do {
795 status = at76_get_cmd_status(priv->udev, cmd);
796 if (status < 0) {
797 printk(KERN_ERR "%s: at76_get_cmd_status failed: %d\n",
798 wiphy_name(priv->hw->wiphy), status);
799 break;
800 }
801
802 at76_dbg(DBG_WAIT_COMPLETE,
803 "%s: Waiting on cmd %d, status = %d (%s)",
804 wiphy_name(priv->hw->wiphy), cmd, status,
805 at76_get_cmd_status_string(status));
806
807 if (status != CMD_STATUS_IN_PROGRESS
808 && status != CMD_STATUS_IDLE)
809 break;
810
811 schedule_timeout_interruptible(HZ / 10); /* 100 ms */
812 if (time_after(jiffies, timeout)) {
813 printk(KERN_ERR
814 "%s: completion timeout for command %d\n",
815 wiphy_name(priv->hw->wiphy), cmd);
816 status = -ETIMEDOUT;
817 break;
818 }
819 } while (1);
820
821 return status;
822}
823
824static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf)
825{
826 int ret;
827
828 ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf,
829 offsetof(struct set_mib_buffer,
830 data) + buf->size);
831 if (ret < 0)
832 return ret;
833
834 ret = at76_wait_completion(priv, CMD_SET_MIB);
835 if (ret != CMD_STATUS_COMPLETE) {
836 printk(KERN_INFO
837 "%s: set_mib: at76_wait_completion failed "
838 "with %d\n", wiphy_name(priv->hw->wiphy), ret);
839 ret = -EIO;
840 }
841
842 return ret;
843}
844
845/* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */
846static int at76_set_radio(struct at76_priv *priv, int enable)
847{
848 int ret;
849 int cmd;
850
851 if (priv->radio_on == enable)
852 return 0;
853
854 cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF;
855
856 ret = at76_set_card_command(priv->udev, cmd, NULL, 0);
857 if (ret < 0)
858 printk(KERN_ERR "%s: at76_set_card_command(%d) failed: %d\n",
859 wiphy_name(priv->hw->wiphy), cmd, ret);
860 else
861 ret = 1;
862
863 priv->radio_on = enable;
864 return ret;
865}
866
867/* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */
868static int at76_set_pm_mode(struct at76_priv *priv)
869{
870 int ret = 0;
871
872 priv->mib_buf.type = MIB_MAC_MGMT;
873 priv->mib_buf.size = 1;
874 priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode);
875 priv->mib_buf.data.byte = priv->pm_mode;
876
877 ret = at76_set_mib(priv, &priv->mib_buf);
878 if (ret < 0)
879 printk(KERN_ERR "%s: set_mib (pm_mode) failed: %d\n",
880 wiphy_name(priv->hw->wiphy), ret);
881
882 return ret;
883}
884
885static int at76_set_preamble(struct at76_priv *priv, u8 type)
886{
887 int ret = 0;
888
889 priv->mib_buf.type = MIB_LOCAL;
890 priv->mib_buf.size = 1;
891 priv->mib_buf.index = offsetof(struct mib_local, preamble_type);
892 priv->mib_buf.data.byte = type;
893
894 ret = at76_set_mib(priv, &priv->mib_buf);
895 if (ret < 0)
896 printk(KERN_ERR "%s: set_mib (preamble) failed: %d\n",
897 wiphy_name(priv->hw->wiphy), ret);
898
899 return ret;
900}
901
902static int at76_set_frag(struct at76_priv *priv, u16 size)
903{
904 int ret = 0;
905
906 priv->mib_buf.type = MIB_MAC;
907 priv->mib_buf.size = 2;
908 priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold);
909 priv->mib_buf.data.word = cpu_to_le16(size);
910
911 ret = at76_set_mib(priv, &priv->mib_buf);
912 if (ret < 0)
913 printk(KERN_ERR "%s: set_mib (frag threshold) failed: %d\n",
914 wiphy_name(priv->hw->wiphy), ret);
915
916 return ret;
917}
918
919static int at76_set_rts(struct at76_priv *priv, u16 size)
920{
921 int ret = 0;
922
923 priv->mib_buf.type = MIB_MAC;
924 priv->mib_buf.size = 2;
925 priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold);
926 priv->mib_buf.data.word = cpu_to_le16(size);
927
928 ret = at76_set_mib(priv, &priv->mib_buf);
929 if (ret < 0)
930 printk(KERN_ERR "%s: set_mib (rts) failed: %d\n",
931 wiphy_name(priv->hw->wiphy), ret);
932
933 return ret;
934}
935
936static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff)
937{
938 int ret = 0;
939
940 priv->mib_buf.type = MIB_LOCAL;
941 priv->mib_buf.size = 1;
942 priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback);
943 priv->mib_buf.data.byte = onoff;
944
945 ret = at76_set_mib(priv, &priv->mib_buf);
946 if (ret < 0)
947 printk(KERN_ERR "%s: set_mib (autorate fallback) failed: %d\n",
948 wiphy_name(priv->hw->wiphy), ret);
949
950 return ret;
951}
952
953static void at76_dump_mib_mac_addr(struct at76_priv *priv)
954{
955 int i;
956 int ret;
957 struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr),
958 GFP_KERNEL);
959
960 if (!m)
961 return;
962
963 ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m,
964 sizeof(struct mib_mac_addr));
965 if (ret < 0) {
966 printk(KERN_ERR "%s: at76_get_mib (MAC_ADDR) failed: %d\n",
967 wiphy_name(priv->hw->wiphy), ret);
968 goto exit;
969 }
970
a6ef92ad 971 at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %pM res 0x%x 0x%x",
1264b951 972 wiphy_name(priv->hw->wiphy),
a6ef92ad 973 m->mac_addr, m->res[0], m->res[1]);
1264b951 974 for (i = 0; i < ARRAY_SIZE(m->group_addr); i++)
a6ef92ad 975 at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %pM, "
1264b951 976 "status %d", wiphy_name(priv->hw->wiphy), i,
a6ef92ad 977 m->group_addr[i], m->group_addr_status[i]);
1264b951
KV		 978exit:
979 kfree(m);
980}
981
982static void at76_dump_mib_mac_wep(struct at76_priv *priv)
983{
984 int i;
985 int ret;
986 int key_len;
987 struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL);
988
989 if (!m)
990 return;
991
992 ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m,
993 sizeof(struct mib_mac_wep));
994 if (ret < 0) {
995 printk(KERN_ERR "%s: at76_get_mib (MAC_WEP) failed: %d\n",
996 wiphy_name(priv->hw->wiphy), ret);
997 goto exit;
998 }
999
1000 at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u "
1001 "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u "
1002 "encr_level %u key %d", wiphy_name(priv->hw->wiphy),
1003 m->privacy_invoked, m->wep_default_key_id,
1004 m->wep_key_mapping_len, m->exclude_unencrypted,
1005 le32_to_cpu(m->wep_icv_error_count),
1006 le32_to_cpu(m->wep_excluded_count), m->encryption_level,
1007 m->wep_default_key_id);
1008
1009 key_len = (m->encryption_level == 1) ?
1010 WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN;
1011
1012 for (i = 0; i < WEP_KEYS; i++)
1013 at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s",
1014 wiphy_name(priv->hw->wiphy), i,
1015 hex2str(m->wep_default_keyvalue[i], key_len));
1016exit:
1017 kfree(m);
1018}
1019
1020static void at76_dump_mib_mac_mgmt(struct at76_priv *priv)
1021{
1022 int ret;
1023 struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt),
1024 GFP_KERNEL);
1025
1026 if (!m)
1027 return;
1028
1029 ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m,
1030 sizeof(struct mib_mac_mgmt));
1031 if (ret < 0) {
1032 printk(KERN_ERR "%s: at76_get_mib (MAC_MGMT) failed: %d\n",
1033 wiphy_name(priv->hw->wiphy), ret);
1034 goto exit;
1035 }
1036
1037 at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration "
1038 "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d "
1039 "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d "
a6ef92ad 1040 "current_bssid %pM current_essid %s current_bss_type %d "
1264b951
KV		 1041 "pm_mode %d ibss_change %d res %d "
1042 "multi_domain_capability_implemented %d "
1043 "international_roaming %d country_string %.3s",
1044 wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period),
1045 le16_to_cpu(m->CFP_max_duration),
1046 le16_to_cpu(m->medium_occupancy_limit),
1047 le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window),
1048 m->CFP_mode, m->privacy_option_implemented, m->DTIM_period,
a6ef92ad 1049 m->CFP_period, m->current_bssid,
1264b951
KV		 1050 hex2str(m->current_essid, IW_ESSID_MAX_SIZE),
1051 m->current_bss_type, m->power_mgmt_mode, m->ibss_change,
1052 m->res, m->multi_domain_capability_implemented,
1053 m->multi_domain_capability_enabled, m->country_string);
1054exit:
1055 kfree(m);
1056}
1057
1058static void at76_dump_mib_mac(struct at76_priv *priv)
1059{
1060 int ret;
1061 struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL);
1062
1063 if (!m)
1064 return;
1065
1066 ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac));
1067 if (ret < 0) {
1068 printk(KERN_ERR "%s: at76_get_mib (MAC) failed: %d\n",
1069 wiphy_name(priv->hw->wiphy), ret);
1070 goto exit;
1071 }
1072
1073 at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d "
1074 "max_rx_lifetime %d frag_threshold %d rts_threshold %d "
1075 "cwmin %d cwmax %d short_retry_time %d long_retry_time %d "
1076 "scan_type %d scan_channel %d probe_delay %u "
1077 "min_channel_time %d max_channel_time %d listen_int %d "
a6ef92ad 1078 "desired_ssid %s desired_bssid %pM desired_bsstype %d",
1264b951
KV		 1079 wiphy_name(priv->hw->wiphy),
1080 le32_to_cpu(m->max_tx_msdu_lifetime),
1081 le32_to_cpu(m->max_rx_lifetime),
1082 le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold),
1083 le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax),
1084 m->short_retry_time, m->long_retry_time, m->scan_type,
1085 m->scan_channel, le16_to_cpu(m->probe_delay),
1086 le16_to_cpu(m->min_channel_time),
1087 le16_to_cpu(m->max_channel_time),
1088 le16_to_cpu(m->listen_interval),
1089 hex2str(m->desired_ssid, IW_ESSID_MAX_SIZE),
a6ef92ad 1090 m->desired_bssid, m->desired_bsstype);
1264b951
KV		 1091exit:
1092 kfree(m);
1093}
1094
1095static void at76_dump_mib_phy(struct at76_priv *priv)
1096{
1097 int ret;
1098 struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL);
1099
1100 if (!m)
1101 return;
1102
1103 ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy));
1104 if (ret < 0) {
1105 printk(KERN_ERR "%s: at76_get_mib (PHY) failed: %d\n",
1106 wiphy_name(priv->hw->wiphy), ret);
1107 goto exit;
1108 }
1109
1110 at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d "
1111 "sifs_time %d preamble_length %d plcp_header_length %d "
1112 "mpdu_max_length %d cca_mode_supported %d operation_rate_set "
1113 "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d "
1114 "phy_type %d current_reg_domain %d",
1115 wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold),
1116 le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time),
1117 le16_to_cpu(m->preamble_length),
1118 le16_to_cpu(m->plcp_header_length),
1119 le16_to_cpu(m->mpdu_max_length),
1120 le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0],
1121 m->operation_rate_set[1], m->operation_rate_set[2],
1122 m->operation_rate_set[3], m->channel_id, m->current_cca_mode,
1123 m->phy_type, m->current_reg_domain);
1124exit:
1125 kfree(m);
1126}
1127
1128static void at76_dump_mib_local(struct at76_priv *priv)
1129{
1130 int ret;
1131 struct mib_local *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL);
1132
1133 if (!m)
1134 return;
1135
1136 ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(struct mib_local));
1137 if (ret < 0) {
1138 printk(KERN_ERR "%s: at76_get_mib (LOCAL) failed: %d\n",
1139 wiphy_name(priv->hw->wiphy), ret);
1140 goto exit;
1141 }
1142
1143 at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d "
1144 "txautorate_fallback %d ssid_size %d promiscuous_mode %d "
1145 "preamble_type %d", wiphy_name(priv->hw->wiphy),
1146 m->beacon_enable,
1147 m->txautorate_fallback, m->ssid_size, m->promiscuous_mode,
1148 m->preamble_type);
1149exit:
1150 kfree(m);
1151}
1152
1153static void at76_dump_mib_mdomain(struct at76_priv *priv)
1154{
1155 int ret;
1156 struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL);
1157
1158 if (!m)
1159 return;
1160
1161 ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m,
1162 sizeof(struct mib_mdomain));
1163 if (ret < 0) {
1164 printk(KERN_ERR "%s: at76_get_mib (MDOMAIN) failed: %d\n",
1165 wiphy_name(priv->hw->wiphy), ret);
1166 goto exit;
1167 }
1168
1169 at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s",
1170 wiphy_name(priv->hw->wiphy),
1171 hex2str(m->channel_list, sizeof(m->channel_list)));
1172
1173 at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s",
1174 wiphy_name(priv->hw->wiphy),
1175 hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel)));
1176exit:
1177 kfree(m);
1178}
1179
1180/* Enable monitor mode */
1181static int at76_start_monitor(struct at76_priv *priv)
1182{
1183 struct at76_req_scan scan;
1184 int ret;
1185
1186 memset(&scan, 0, sizeof(struct at76_req_scan));
1187 memset(scan.bssid, 0xff, ETH_ALEN);
1188
1189 scan.channel = priv->channel;
1190 scan.scan_type = SCAN_TYPE_PASSIVE;
1191 scan.international_scan = 0;
13b409cc
JA		 1192 scan.min_channel_time = cpu_to_le16(priv->scan_min_time);
1193 scan.max_channel_time = cpu_to_le16(priv->scan_max_time);
1194 scan.probe_delay = cpu_to_le16(0);
1264b951
KV		 1195
1196 ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan));
1197 if (ret >= 0)
1198 ret = at76_get_cmd_status(priv->udev, CMD_SCAN);
1199
1200 return ret;
1201}
1202
1203/* Calculate padding from txbuf->wlength (which excludes the USB TX header),
1204 likely to compensate a flaw in the AT76C503A USB part ... */
1205static inline int at76_calc_padding(int wlen)
1206{
1207 /* add the USB TX header */
1208 wlen += AT76_TX_HDRLEN;
1209
1210 wlen = wlen % 64;
1211
1212 if (wlen < 50)
1213 return 50 - wlen;
1214
1215 if (wlen >= 61)
1216 return 64 + 50 - wlen;
1217
1218 return 0;
1219}
1220
1221static void at76_rx_callback(struct urb *urb)
1222{
1223 struct at76_priv *priv = urb->context;
1224
1225 priv->rx_tasklet.data = (unsigned long)urb;
1226 tasklet_schedule(&priv->rx_tasklet);
1264b951
KV		 1227}
1228
1229static int at76_submit_rx_urb(struct at76_priv *priv)
1230{
1231 int ret;
1232 int size;
1233 struct sk_buff *skb = priv->rx_skb;
1234
1235 if (!priv->rx_urb) {
1236 printk(KERN_ERR "%s: %s: priv->rx_urb is NULL\n",
1237 wiphy_name(priv->hw->wiphy), __func__);
1238 return -EFAULT;
1239 }
1240
1241 if (!skb) {
1242 skb = dev_alloc_skb(sizeof(struct at76_rx_buffer));
1243 if (!skb) {
1244 printk(KERN_ERR "%s: cannot allocate rx skbuff\n",
1245 wiphy_name(priv->hw->wiphy));
1246 ret = -ENOMEM;
1247 goto exit;
1248 }
1249 priv->rx_skb = skb;
1250 } else {
1251 skb_push(skb, skb_headroom(skb));
1252 skb_trim(skb, 0);
1253 }
1254
1255 size = skb_tailroom(skb);
1256 usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe,
1257 skb_put(skb, size), size, at76_rx_callback, priv);
1258 ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC);
1259 if (ret < 0) {
1260 if (ret == -ENODEV)
1261 at76_dbg(DBG_DEVSTART,
1262 "usb_submit_urb returned -ENODEV");
1263 else
1264 printk(KERN_ERR "%s: rx, usb_submit_urb failed: %d\n",
1265 wiphy_name(priv->hw->wiphy), ret);
1266 }
1267
1268exit:
1269 if (ret < 0 && ret != -ENODEV)
1270 printk(KERN_ERR "%s: cannot submit rx urb - please unload the "
1271 "driver and/or power cycle the device\n",
1272 wiphy_name(priv->hw->wiphy));
1273
1274 return ret;
1275}
1276
1277/* Download external firmware */
1278static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe)
1279{
1280 int ret;
1281 int op_mode;
1282 int blockno = 0;
1283 int bsize;
1284 u8 *block;
1285 u8 *buf = fwe->extfw;
1286 int size = fwe->extfw_size;
1287
1288 if (!buf || !size)
1289 return -ENOENT;
1290
1291 op_mode = at76_get_op_mode(udev);
1292 at76_dbg(DBG_DEVSTART, "opmode %d", op_mode);
1293
1294 if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) {
1295 dev_printk(KERN_ERR, &udev->dev, "unexpected opmode %d\n",
1296 op_mode);
1297 return -EINVAL;
1298 }
1299
1300 block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL);
1301 if (!block)
1302 return -ENOMEM;
1303
1304 at76_dbg(DBG_DEVSTART, "downloading external firmware");
1305
1306 /* for fw >= 0.100, the device needs an extra empty block */
1307 do {
1308 bsize = min_t(int, size, FW_BLOCK_SIZE);
1309 memcpy(block, buf, bsize);
1310 at76_dbg(DBG_DEVSTART,
1311 "ext fw, size left = %5d, bsize = %4d, blockno = %2d",
1312 size, bsize, blockno);
1313 ret = at76_load_ext_fw_block(udev, blockno, block, bsize);
1314 if (ret != bsize) {
1315 dev_printk(KERN_ERR, &udev->dev,
1316 "loading %dth firmware block failed: %d\n",
1317 blockno, ret);
1318 goto exit;
1319 }
1320 buf += bsize;
1321 size -= bsize;
1322 blockno++;
1323 } while (bsize > 0);
1324
1325 if (at76_is_505a(fwe->board_type)) {
1326 at76_dbg(DBG_DEVSTART, "200 ms delay for 505a");
1327 schedule_timeout_interruptible(HZ / 5 + 1);
1328 }
1329
1330exit:
1331 kfree(block);
1332 if (ret < 0)
1333 dev_printk(KERN_ERR, &udev->dev,
1334 "downloading external firmware failed: %d\n", ret);
1335 return ret;
1336}
1337
1338/* Download internal firmware */
1339static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe)
1340{
1341 int ret;
1342 int need_remap = !at76_is_505a(fwe->board_type);
1343
1344 ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size,
1345 need_remap ? 0 : 2 * HZ);
1346
1347 if (ret < 0) {
1348 dev_printk(KERN_ERR, &udev->dev,
1349 "downloading internal fw failed with %d\n", ret);
1350 goto exit;
1351 }
1352
1353 at76_dbg(DBG_DEVSTART, "sending REMAP");
1354
1355 /* no REMAP for 505A (see SF driver) */
1356 if (need_remap) {
1357 ret = at76_remap(udev);
1358 if (ret < 0) {
1359 dev_printk(KERN_ERR, &udev->dev,
1360 "sending REMAP failed with %d\n", ret);
1361 goto exit;
1362 }
1363 }
1364
1365 at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds");
1366 schedule_timeout_interruptible(2 * HZ + 1);
1367 usb_reset_device(udev);
1368
1369exit:
1370 return ret;
1371}
1372
1373static int at76_startup_device(struct at76_priv *priv)
1374{
1375 struct at76_card_config *ccfg = &priv->card_config;
1376 int ret;
1377
1378 at76_dbg(DBG_PARAMS,
1379 "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d "
1380 "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size,
1381 priv->essid, hex2str(priv->essid, IW_ESSID_MAX_SIZE),
1382 priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra",
1383 priv->channel, priv->wep_enabled ? "enabled" : "disabled",
1384 priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]);
1385 at76_dbg(DBG_PARAMS,
1386 "%s param: preamble %s rts %d retry %d frag %d "
1387 "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy),
1388 preambles[priv->preamble_type], priv->rts_threshold,
1389 priv->short_retry_limit, priv->frag_threshold,
1390 priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate ==
1391 TX_RATE_2MBIT ? "2MBit" : priv->txrate ==
1392 TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate ==
1393 TX_RATE_11MBIT ? "11MBit" : priv->txrate ==
1394 TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode);
1395 at76_dbg(DBG_PARAMS,
1396 "%s param: pm_mode %d pm_period %d auth_mode %s "
1397 "scan_times %d %d scan_mode %s",
1398 wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period,
1399 priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret",
1400 priv->scan_min_time, priv->scan_max_time,
1401 priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive");
1402
1403 memset(ccfg, 0, sizeof(struct at76_card_config));
1404 ccfg->promiscuous_mode = 0;
1405 ccfg->short_retry_limit = priv->short_retry_limit;
1406
1407 if (priv->wep_enabled) {
1408 if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN)
1409 ccfg->encryption_type = 2;
1410 else
1411 ccfg->encryption_type = 1;
1412
1413 /* jal: always exclude unencrypted if WEP is active */
1414 ccfg->exclude_unencrypted = 1;
1415 } else {
1416 ccfg->exclude_unencrypted = 0;
1417 ccfg->encryption_type = 0;
1418 }
1419
1420 ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold);
1421 ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold);
1422
1423 memcpy(ccfg->basic_rate_set, hw_rates, 4);
1424 /* jal: really needed, we do a set_mib for autorate later ??? */
1425 ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0);
1426 ccfg->channel = priv->channel;
1427 ccfg->privacy_invoked = priv->wep_enabled;
1428 memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE);
1429 ccfg->ssid_len = priv->essid_size;
1430
1431 ccfg->wep_default_key_id = priv->wep_key_id;
1432 memcpy(ccfg->wep_default_key_value, priv->wep_keys,
1433 sizeof(priv->wep_keys));
1434
1435 ccfg->short_preamble = priv->preamble_type;
1436 ccfg->beacon_period = cpu_to_le16(priv->beacon_period);
1437
1438 ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config,
1439 sizeof(struct at76_card_config));
1440 if (ret < 0) {
1441 printk(KERN_ERR "%s: at76_set_card_command failed: %d\n",
1442 wiphy_name(priv->hw->wiphy), ret);
1443 return ret;
1444 }
1445
1446 at76_wait_completion(priv, CMD_STARTUP);
1447
1448 /* remove BSSID from previous run */
1449 memset(priv->bssid, 0, ETH_ALEN);
1450
1451 if (at76_set_radio(priv, 1) == 1)
1452 at76_wait_completion(priv, CMD_RADIO_ON);
1453
1454 ret = at76_set_preamble(priv, priv->preamble_type);
1455 if (ret < 0)
1456 return ret;
1457
1458 ret = at76_set_frag(priv, priv->frag_threshold);
1459 if (ret < 0)
1460 return ret;
1461
1462 ret = at76_set_rts(priv, priv->rts_threshold);
1463 if (ret < 0)
1464 return ret;
1465
1466 ret = at76_set_autorate_fallback(priv,
1467 priv->txrate == TX_RATE_AUTO ? 1 : 0);
1468 if (ret < 0)
1469 return ret;
1470
1471 ret = at76_set_pm_mode(priv);
1472 if (ret < 0)
1473 return ret;
1474
1475 if (at76_debug & DBG_MIB) {
1476 at76_dump_mib_mac(priv);
1477 at76_dump_mib_mac_addr(priv);
1478 at76_dump_mib_mac_mgmt(priv);
1479 at76_dump_mib_mac_wep(priv);
1480 at76_dump_mib_mdomain(priv);
1481 at76_dump_mib_phy(priv);
1482 at76_dump_mib_local(priv);
1483 }
1484
1485 return 0;
1486}
1487
1488/* Enable or disable promiscuous mode */
1489static void at76_work_set_promisc(struct work_struct *work)
1490{
1491 struct at76_priv *priv = container_of(work, struct at76_priv,
1492 work_set_promisc);
1493 int ret = 0;
1494
1cc198fe
JA		 1495 if (priv->device_unplugged)
1496 return;
1497
1264b951
KV		 1498 mutex_lock(&priv->mtx);
1499
1500 priv->mib_buf.type = MIB_LOCAL;
1501 priv->mib_buf.size = 1;
1502 priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode);
1503 priv->mib_buf.data.byte = priv->promisc ? 1 : 0;
1504
1505 ret = at76_set_mib(priv, &priv->mib_buf);
1506 if (ret < 0)
1507 printk(KERN_ERR "%s: set_mib (promiscuous_mode) failed: %d\n",
1508 wiphy_name(priv->hw->wiphy), ret);
1509
1510 mutex_unlock(&priv->mtx);
1511}
1512
1513/* Submit Rx urb back to the device */
1514static void at76_work_submit_rx(struct work_struct *work)
1515{
1516 struct at76_priv *priv = container_of(work, struct at76_priv,
1517 work_submit_rx);
1518
1519 mutex_lock(&priv->mtx);
1520 at76_submit_rx_urb(priv);
1521 mutex_unlock(&priv->mtx);
1522}
1523
1524static void at76_rx_tasklet(unsigned long param)
1525{
1526 struct urb *urb = (struct urb *)param;
1527 struct at76_priv *priv = urb->context;
1528 struct at76_rx_buffer *buf;
1529 struct ieee80211_rx_status rx_status = { 0 };
1530
1531 if (priv->device_unplugged) {
1532 at76_dbg(DBG_DEVSTART, "device unplugged");
1533 if (urb)
1534 at76_dbg(DBG_DEVSTART, "urb status %d", urb->status);
1535 return;
1536 }
1537
1538 if (!priv->rx_skb || !priv->rx_skb->data)
1539 return;
1540
1541 buf = (struct at76_rx_buffer *)priv->rx_skb->data;
1542
1543 if (urb->status != 0) {
1544 if (urb->status != -ENOENT && urb->status != -ECONNRESET)
1545 at76_dbg(DBG_URB,
1546 "%s %s: - nonzero Rx bulk status received: %d",
1547 __func__, wiphy_name(priv->hw->wiphy),
1548 urb->status);
1549 return;
1550 }
1551
1552 at76_dbg(DBG_RX_ATMEL_HDR,
1553 "%s: rx frame: rate %d rssi %d noise %d link %d",
1554 wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi,
1555 buf->noise_level, buf->link_quality);
1556
1557 skb_pull(priv->rx_skb, AT76_RX_HDRLEN);
1558 skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength));
1559 at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data,
1560 priv->rx_skb->len, "RX: len=%d", priv->rx_skb->len);
1561
1562 rx_status.signal = buf->rssi;
1563 rx_status.flag |= RX_FLAG_DECRYPTED;
1564 rx_status.flag |= RX_FLAG_IV_STRIPPED;
1565
1566 at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d",
1567 priv->rx_skb->len, priv->rx_skb->data_len);
f1d58c25
JB		 1568 memcpy(IEEE80211_SKB_RXCB(priv->rx_skb), &rx_status, sizeof(rx_status));
1569 ieee80211_rx_irqsafe(priv->hw, priv->rx_skb);
1264b951
KV		 1570
1571 /* Use a new skb for the next receive */
1572 priv->rx_skb = NULL;
1573
1574 at76_submit_rx_urb(priv);
1575}
1576
1577/* Load firmware into kernel memory and parse it */
1578static struct fwentry *at76_load_firmware(struct usb_device *udev,
1579 enum board_type board_type)
1580{
1581 int ret;
1582 char *str;
1583 struct at76_fw_header *fwh;
1584 struct fwentry *fwe = &firmwares[board_type];
1585
1586 mutex_lock(&fw_mutex);
1587
1588 if (fwe->loaded) {
1589 at76_dbg(DBG_FW, "re-using previously loaded fw");
1590 goto exit;
1591 }
1592
1593 at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname);
1594 ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev);
1595 if (ret < 0) {
1596 dev_printk(KERN_ERR, &udev->dev, "firmware %s not found!\n",
1597 fwe->fwname);
1598 dev_printk(KERN_ERR, &udev->dev,
1599 "you may need to download the firmware from "
1600 "http://developer.berlios.de/projects/at76c503a/\n");
1601 goto exit;
1602 }
1603
1604 at76_dbg(DBG_FW, "got it.");
1605 fwh = (struct at76_fw_header *)(fwe->fw->data);
1606
1607 if (fwe->fw->size <= sizeof(*fwh)) {
1608 dev_printk(KERN_ERR, &udev->dev,
1609 "firmware is too short (0x%zx)\n", fwe->fw->size);
1610 goto exit;
1611 }
1612
1613 /* CRC currently not checked */
1614 fwe->board_type = le32_to_cpu(fwh->board_type);
1615 if (fwe->board_type != board_type) {
1616 dev_printk(KERN_ERR, &udev->dev,
1617 "board type mismatch, requested %u, got %u\n",
1618 board_type, fwe->board_type);
1619 goto exit;
1620 }
1621
1622 fwe->fw_version.major = fwh->major;
1623 fwe->fw_version.minor = fwh->minor;
1624 fwe->fw_version.patch = fwh->patch;
1625 fwe->fw_version.build = fwh->build;
1626
1627 str = (char *)fwh + le32_to_cpu(fwh->str_offset);
1628 fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset);
1629 fwe->intfw_size = le32_to_cpu(fwh->int_fw_len);
1630 fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset);
1631 fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len);
1632
1633 fwe->loaded = 1;
1634
1635 dev_printk(KERN_DEBUG, &udev->dev,
1636 "using firmware %s (version %d.%d.%d-%d)\n",
1637 fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build);
1638
1639 at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type,
1640 le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len),
1641 le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len));
1642 at76_dbg(DBG_DEVSTART, "firmware id %s", str);
1643
1644exit:
1645 mutex_unlock(&fw_mutex);
1646
1647 if (fwe->loaded)
1648 return fwe;
1649 else
1650 return NULL;
1651}
1652
41b4b289
SS		 1653static int at76_join(struct at76_priv *priv)
1654{
1655 struct at76_req_join join;
1656 int ret;
1657
1658 memset(&join, 0, sizeof(struct at76_req_join));
1659 memcpy(join.essid, priv->essid, priv->essid_size);
1660 join.essid_size = priv->essid_size;
1661 memcpy(join.bssid, priv->bssid, ETH_ALEN);
1662 join.bss_type = INFRASTRUCTURE_MODE;
1663 join.channel = priv->channel;
1664 join.timeout = cpu_to_le16(2000);
1665
1666 at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__);
1667 ret = at76_set_card_command(priv->udev, CMD_JOIN, &join,
1668 sizeof(struct at76_req_join));
1669
1670 if (ret < 0) {
1671 printk(KERN_ERR "%s: at76_set_card_command failed: %d\n",
1672 wiphy_name(priv->hw->wiphy), ret);
1673 return 0;
1674 }
1675
1676 ret = at76_wait_completion(priv, CMD_JOIN);
1677 at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret);
1678 if (ret != CMD_STATUS_COMPLETE) {
1679 printk(KERN_ERR "%s: at76_wait_completion failed: %d\n",
1680 wiphy_name(priv->hw->wiphy), ret);
1681 return 0;
1682 }
1683
1684 at76_set_pm_mode(priv);
1685
1686 return 0;
1687}
1688
a185045c
SS		 1689static void at76_work_join_bssid(struct work_struct *work)
1690{
1691 struct at76_priv *priv = container_of(work, struct at76_priv,
1692 work_join_bssid);
1693
1694 if (priv->device_unplugged)
1695 return;
1696
1697 mutex_lock(&priv->mtx);
1698
1699 if (is_valid_ether_addr(priv->bssid))
1700 at76_join(priv);
1701
1702 mutex_unlock(&priv->mtx);
1703}
1704
1264b951
KV		 1705static void at76_mac80211_tx_callback(struct urb *urb)
1706{
1707 struct at76_priv *priv = urb->context;
1708 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb);
1709
1710 at76_dbg(DBG_MAC80211, "%s()", __func__);
1711
1712 switch (urb->status) {
1713 case 0:
1714 /* success */
1715 info->flags |= IEEE80211_TX_STAT_ACK;
1716 break;
1717 case -ENOENT:
1718 case -ECONNRESET:
1719 /* fail, urb has been unlinked */
1720 /* FIXME: add error message */
1721 break;
1722 default:
1723 at76_dbg(DBG_URB, "%s - nonzero tx status received: %d",
1724 __func__, urb->status);
1725 break;
1726 }
1727
1728 memset(&info->status, 0, sizeof(info->status));
1729
1730 ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb);
1731
1732 priv->tx_skb = NULL;
1733
1734 ieee80211_wake_queues(priv->hw);
1735}
1736
1737static int at76_mac80211_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
1738{
1739 struct at76_priv *priv = hw->priv;
1740 struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer;
1741 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
a185045c 1742 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
1264b951
KV		 1743 int padding, submit_len, ret;
1744
1745 at76_dbg(DBG_MAC80211, "%s()", __func__);
1746
1747 if (priv->tx_urb->status == -EINPROGRESS) {
1748 printk(KERN_ERR "%s: %s called while tx urb is pending\n",
1749 wiphy_name(priv->hw->wiphy), __func__);
1750 return NETDEV_TX_BUSY;
1751 }
1752
a185045c
SS		 1753 /* The following code lines are important when the device is going to
1754 * authenticate with a new bssid. The driver must send CMD_JOIN before
1755 * an authentication frame is transmitted. For this to succeed, the
1756 * correct bssid of the AP must be known. As mac80211 does not inform
1757 * drivers about the bssid prior to the authentication process the
1758 * following workaround is necessary. If the TX frame is an
1759 * authentication frame extract the bssid and send the CMD_JOIN. */
1760 if (mgmt->frame_control & cpu_to_le16(IEEE80211_STYPE_AUTH)) {
1761 if (compare_ether_addr(priv->bssid, mgmt->bssid)) {
1762 memcpy(priv->bssid, mgmt->bssid, ETH_ALEN);
1763 ieee80211_queue_work(hw, &priv->work_join_bssid);
1764 return NETDEV_TX_BUSY;
1765 }
1766 }
1767
1264b951
KV		 1768 ieee80211_stop_queues(hw);
1769
1770 at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */
1771
1772 WARN_ON(priv->tx_skb != NULL);
1773
1774 priv->tx_skb = skb;
1775 padding = at76_calc_padding(skb->len);
1776 submit_len = AT76_TX_HDRLEN + skb->len + padding;
1777
1778 /* setup 'Atmel' header */
1779 memset(tx_buffer, 0, sizeof(*tx_buffer));
1780 tx_buffer->padding = padding;
1781 tx_buffer->wlength = cpu_to_le16(skb->len);
1782 tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value;
1783 memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved));
1784 memcpy(tx_buffer->packet, skb->data, skb->len);
1785
1786 at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr",
1787 wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength),
1788 tx_buffer->padding, tx_buffer->tx_rate);
1789
1790 /* send stuff */
1791 at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len,
1792 "%s(): tx_buffer %d bytes:", __func__, submit_len);
1793 usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer,
1794 submit_len, at76_mac80211_tx_callback, priv);
1795 ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC);
1796 if (ret) {
1797 printk(KERN_ERR "%s: error in tx submit urb: %d\n",
1798 wiphy_name(priv->hw->wiphy), ret);
1799 if (ret == -EINVAL)
1800 printk(KERN_ERR
1801 "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n",
1802 wiphy_name(priv->hw->wiphy), priv->tx_urb,
1803 priv->tx_urb->hcpriv, priv->tx_urb->complete);
1804 }
1805
1806 return 0;
1807}
1808
1809static int at76_mac80211_start(struct ieee80211_hw *hw)
1810{
1811 struct at76_priv *priv = hw->priv;
1812 int ret;
1813
1814 at76_dbg(DBG_MAC80211, "%s()", __func__);
1815
1816 mutex_lock(&priv->mtx);
1817
1818 ret = at76_submit_rx_urb(priv);
1819 if (ret < 0) {
1820 printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n",
1821 wiphy_name(priv->hw->wiphy), ret);
1822 goto error;
1823 }
1824
1825 at76_startup_device(priv);
1826
1827 at76_start_monitor(priv);
1828
1829error:
1830 mutex_unlock(&priv->mtx);
1831
1832 return 0;
1833}
1834
1835static void at76_mac80211_stop(struct ieee80211_hw *hw)
1836{
1837 struct at76_priv *priv = hw->priv;
1838
1839 at76_dbg(DBG_MAC80211, "%s()", __func__);
1840
9ed21d39 1841 cancel_delayed_work(&priv->dwork_hw_scan);
a185045c 1842 cancel_work_sync(&priv->work_join_bssid);
ebc8ab17
LR		 1843 cancel_work_sync(&priv->work_set_promisc);
1844
1264b951
KV		 1845 mutex_lock(&priv->mtx);
1846
1847 if (!priv->device_unplugged) {
1848 /* We are called by "ifconfig ethX down", not because the
1849 * device is not available anymore. */
1850 at76_set_radio(priv, 0);
1851
1852 /* We unlink rx_urb because at76_open() re-submits it.
1853 * If unplugged, at76_delete_device() takes care of it. */
1854 usb_kill_urb(priv->rx_urb);
1855 }
1856
1857 mutex_unlock(&priv->mtx);
1858}
1859
1860static int at76_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1861 struct ieee80211_vif *vif)
1264b951
KV		 1862{
1863 struct at76_priv *priv = hw->priv;
1864 int ret = 0;
1865
1866 at76_dbg(DBG_MAC80211, "%s()", __func__);
1867
1868 mutex_lock(&priv->mtx);
1869
1ed32e4f 1870 switch (vif->type) {
1264b951
KV		 1871 case NL80211_IFTYPE_STATION:
1872 priv->iw_mode = IW_MODE_INFRA;
1873 break;
1874 default:
1875 ret = -EOPNOTSUPP;
1876 goto exit;
1877 }
1878
1879exit:
1880 mutex_unlock(&priv->mtx);
1881
1882 return ret;
1883}
1884
1885static void at76_remove_interface(struct ieee80211_hw *hw,
1ed32e4f 1886 struct ieee80211_vif *vif)
1264b951
KV		 1887{
1888 at76_dbg(DBG_MAC80211, "%s()", __func__);
1889}
1890
1264b951
KV		 1891static void at76_dwork_hw_scan(struct work_struct *work)
1892{
1893 struct at76_priv *priv = container_of(work, struct at76_priv,
1894 dwork_hw_scan.work);
1895 int ret;
1896
deda862e
JA		 1897 if (priv->device_unplugged)
1898 return;
1899
1264b951
KV		 1900 mutex_lock(&priv->mtx);
1901
1902 ret = at76_get_cmd_status(priv->udev, CMD_SCAN);
1903 at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret);
1904
1905 /* FIXME: add maximum time for scan to complete */
1906
1907 if (ret != CMD_STATUS_COMPLETE) {
42935eca
LR		 1908 ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan,
1909 SCAN_POLL_INTERVAL);
21a4cc00
JL		 1910 mutex_unlock(&priv->mtx);
1911 return;
1264b951
KV		 1912 }
1913
1264b951
KV		 1914 if (is_valid_ether_addr(priv->bssid))
1915 at76_join(priv);
1916
1264b951 1917 mutex_unlock(&priv->mtx);
21a4cc00
JL		 1918
1919 ieee80211_scan_completed(priv->hw, false);
1920
1921 ieee80211_wake_queues(priv->hw);
1264b951
KV		 1922}
1923
19e8bc7f 1924static int at76_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1925 struct ieee80211_vif *vif,
19e8bc7f 1926 struct cfg80211_scan_request *req)
1264b951
KV		 1927{
1928 struct at76_priv *priv = hw->priv;
1929 struct at76_req_scan scan;
19e8bc7f
JA		 1930 u8 *ssid = NULL;
1931 int ret, len = 0;
1264b951
KV		 1932
1933 at76_dbg(DBG_MAC80211, "%s():", __func__);
1264b951 1934
deda862e
JA		 1935 if (priv->device_unplugged)
1936 return 0;
1937
1264b951
KV		 1938 mutex_lock(&priv->mtx);
1939
1940 ieee80211_stop_queues(hw);
1941
1942 memset(&scan, 0, sizeof(struct at76_req_scan));
1943 memset(scan.bssid, 0xFF, ETH_ALEN);
19e8bc7f
JA		 1944
1945 if (req->n_ssids) {
1946 scan.scan_type = SCAN_TYPE_ACTIVE;
1947 ssid = req->ssids[0].ssid;
1948 len = req->ssids[0].ssid_len;
1949 } else {
1950 scan.scan_type = SCAN_TYPE_PASSIVE;
1951 }
1952
1953 if (len) {
1264b951
KV		 1954 memcpy(scan.essid, ssid, len);
1955 scan.essid_size = len;
1956 }
19e8bc7f 1957
1264b951
KV		 1958 scan.min_channel_time = cpu_to_le16(priv->scan_min_time);
1959 scan.max_channel_time = cpu_to_le16(priv->scan_max_time);
1960 scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000);
1961 scan.international_scan = 0;
1962
1963 at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__);
1964 ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan));
1965
1966 if (ret < 0) {
1967 err("CMD_SCAN failed: %d", ret);
1968 goto exit;
1969 }
1970
42935eca
LR		 1971 ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan,
1972 SCAN_POLL_INTERVAL);
1264b951
KV		 1973
1974exit:
1975 mutex_unlock(&priv->mtx);
1976
1977 return 0;
1978}
1979
1980static int at76_config(struct ieee80211_hw *hw, u32 changed)
1981{
1982 struct at76_priv *priv = hw->priv;
1983
f424afa1
JB		 1984 at76_dbg(DBG_MAC80211, "%s(): channel %d",
1985 __func__, hw->conf.channel->hw_value);
1264b951
KV		 1986 at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:");
1987
1988 mutex_lock(&priv->mtx);
1989
1990 priv->channel = hw->conf.channel->hw_value;
1991
1992 if (is_valid_ether_addr(priv->bssid))
1993 at76_join(priv);
1994 else
1995 at76_start_monitor(priv);
1996
1997 mutex_unlock(&priv->mtx);
1998
1999 return 0;
2000}
2001
2d0ddec5
JB		 2002static void at76_bss_info_changed(struct ieee80211_hw *hw,
2003 struct ieee80211_vif *vif,
2004 struct ieee80211_bss_conf *conf,
2005 u32 changed)
1264b951
KV		 2006{
2007 struct at76_priv *priv = hw->priv;
2008
2009 at76_dbg(DBG_MAC80211, "%s():", __func__);
2d0ddec5
JB		 2010
2011 if (!(changed & BSS_CHANGED_BSSID))
2012 return;
2013
1264b951
KV		 2014 at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:");
2015
2016 mutex_lock(&priv->mtx);
2017
2018 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
2019
2020 if (is_valid_ether_addr(priv->bssid))
2021 /* mac80211 is joining a bss */
2022 at76_join(priv);
2023
2024 mutex_unlock(&priv->mtx);
1264b951
KV		 2025}
2026
2027/* must be atomic */
2028static void at76_configure_filter(struct ieee80211_hw *hw,
2029 unsigned int changed_flags,
3ac64bee 2030 unsigned int *total_flags, u64 multicast)
1264b951
KV		 2031{
2032 struct at76_priv *priv = hw->priv;
2033 int flags;
2034
2035 at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x "
3ac64bee
JB		 2036 "total_flags=0x%08x",
2037 __func__, changed_flags, *total_flags);
1264b951
KV		 2038
2039 flags = changed_flags & AT76_SUPPORTED_FILTERS;
2040 *total_flags = AT76_SUPPORTED_FILTERS;
2041
deda862e
JA		 2042 /* Bail out after updating flags to prevent a WARN_ON in mac80211. */
2043 if (priv->device_unplugged)
2044 return;
2045
1264b951
KV		 2046 /* FIXME: access to priv->promisc should be protected with
2047 * priv->mtx, but it's impossible because this function needs to be
2048 * atomic */
2049
2050 if (flags && !priv->promisc) {
2051 /* mac80211 wants us to enable promiscuous mode */
2052 priv->promisc = 1;
2053 } else if (!flags && priv->promisc) {
2054 /* we need to disable promiscuous mode */
2055 priv->promisc = 0;
2056 } else
2057 return;
2058
42935eca 2059 ieee80211_queue_work(hw, &priv->work_set_promisc);
1264b951
KV		 2060}
2061
2062static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2063 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
2064 struct ieee80211_key_conf *key)
2065{
2066 struct at76_priv *priv = hw->priv;
2067
2068 int i;
2069
2070 at76_dbg(DBG_MAC80211, "%s(): cmd %d key->alg %d key->keyidx %d "
2071 "key->keylen %d",
2072 __func__, cmd, key->alg, key->keyidx, key->keylen);
2073
2074 if (key->alg != ALG_WEP)
2075 return -EOPNOTSUPP;
2076
2077 key->hw_key_idx = key->keyidx;
2078
2079 mutex_lock(&priv->mtx);
2080
2081 switch (cmd) {
2082 case SET_KEY:
2083 memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen);
2084 priv->wep_keys_len[key->keyidx] = key->keylen;
2085
2086 /* FIXME: find out how to do this properly */
2087 priv->wep_key_id = key->keyidx;
2088
2089 break;
2090 case DISABLE_KEY:
2091 default:
2092 priv->wep_keys_len[key->keyidx] = 0;
2093 break;
2094 }
2095
2096 priv->wep_enabled = 0;
2097
2098 for (i = 0; i < WEP_KEYS; i++) {
2099 if (priv->wep_keys_len[i] != 0)
2100 priv->wep_enabled = 1;
2101 }
2102
2103 at76_startup_device(priv);
2104
2105 mutex_unlock(&priv->mtx);
2106
2107 return 0;
2108}
2109
2110static const struct ieee80211_ops at76_ops = {
2111 .tx = at76_mac80211_tx,
2112 .add_interface = at76_add_interface,
2113 .remove_interface = at76_remove_interface,
2114 .config = at76_config,
2d0ddec5 2115 .bss_info_changed = at76_bss_info_changed,
1264b951
KV		 2116 .configure_filter = at76_configure_filter,
2117 .start = at76_mac80211_start,
2118 .stop = at76_mac80211_stop,
2119 .hw_scan = at76_hw_scan,
2120 .set_key = at76_set_key,
2121};
2122
2123/* Allocate network device and initialize private data */
2124static struct at76_priv *at76_alloc_new_device(struct usb_device *udev)
2125{
2126 struct ieee80211_hw *hw;
2127 struct at76_priv *priv;
2128
2129 hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops);
2130 if (!hw) {
2131 printk(KERN_ERR DRIVER_NAME ": could not register"
2132 " ieee80211_hw\n");
2133 return NULL;
2134 }
2135
2136 priv = hw->priv;
2137 priv->hw = hw;
2138
2139 priv->udev = udev;
2140
2141 mutex_init(&priv->mtx);
2142 INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc);
2143 INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx);
a185045c 2144 INIT_WORK(&priv->work_join_bssid, at76_work_join_bssid);
1264b951
KV		 2145 INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan);
2146
deda862e 2147 tasklet_init(&priv->rx_tasklet, at76_rx_tasklet, 0);
1264b951
KV		 2148
2149 priv->pm_mode = AT76_PM_OFF;
2150 priv->pm_period = 0;
2151
2152 /* unit us */
2153 priv->hw->channel_change_time = 100000;
2154
2155 return priv;
2156}
2157
2158static int at76_alloc_urbs(struct at76_priv *priv,
2159 struct usb_interface *interface)
2160{
2161 struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out;
2162 int i;
2163 int buffer_size;
2164 struct usb_host_interface *iface_desc;
2165
2166 at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__);
2167
2168 at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__,
2169 interface->altsetting[0].desc.bNumEndpoints);
2170
2171 ep_in = NULL;
2172 ep_out = NULL;
2173 iface_desc = interface->cur_altsetting;
2174 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
2175 endpoint = &iface_desc->endpoint[i].desc;
2176
2177 at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x",
2178 __func__, i, endpoint->bEndpointAddress,
2179 endpoint->bmAttributes);
2180
2181 if (!ep_in && usb_endpoint_is_bulk_in(endpoint))
2182 ep_in = endpoint;
2183
2184 if (!ep_out && usb_endpoint_is_bulk_out(endpoint))
2185 ep_out = endpoint;
2186 }
2187
2188 if (!ep_in || !ep_out) {
2189 dev_printk(KERN_ERR, &interface->dev,
2190 "bulk endpoints missing\n");
2191 return -ENXIO;
2192 }
2193
2194 priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress);
2195 priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress);
2196
2197 priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
2198 priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
2199 if (!priv->rx_urb || !priv->tx_urb) {
2200 dev_printk(KERN_ERR, &interface->dev, "cannot allocate URB\n");
2201 return -ENOMEM;
2202 }
2203
2204 buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE;
2205 priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
2206 if (!priv->bulk_out_buffer) {
2207 dev_printk(KERN_ERR, &interface->dev,
2208 "cannot allocate output buffer\n");
2209 return -ENOMEM;
2210 }
2211
2212 at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__);
2213
2214 return 0;
2215}
2216
2217static struct ieee80211_rate at76_rates[] = {
2218 { .bitrate = 10, .hw_value = TX_RATE_1MBIT, },
2219 { .bitrate = 20, .hw_value = TX_RATE_2MBIT, },
2220 { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, },
2221 { .bitrate = 110, .hw_value = TX_RATE_11MBIT, },
2222};
2223
2224static struct ieee80211_channel at76_channels[] = {
2225 { .center_freq = 2412, .hw_value = 1 },
2226 { .center_freq = 2417, .hw_value = 2 },
2227 { .center_freq = 2422, .hw_value = 3 },
2228 { .center_freq = 2427, .hw_value = 4 },
2229 { .center_freq = 2432, .hw_value = 5 },
2230 { .center_freq = 2437, .hw_value = 6 },
2231 { .center_freq = 2442, .hw_value = 7 },
2232 { .center_freq = 2447, .hw_value = 8 },
2233 { .center_freq = 2452, .hw_value = 9 },
2234 { .center_freq = 2457, .hw_value = 10 },
2235 { .center_freq = 2462, .hw_value = 11 },
2236 { .center_freq = 2467, .hw_value = 12 },
2237 { .center_freq = 2472, .hw_value = 13 },
2238 { .center_freq = 2484, .hw_value = 14 }
2239};
2240
2241static struct ieee80211_supported_band at76_supported_band = {
2242 .channels = at76_channels,
2243 .n_channels = ARRAY_SIZE(at76_channels),
2244 .bitrates = at76_rates,
2245 .n_bitrates = ARRAY_SIZE(at76_rates),
2246};
2247
2248/* Register network device and initialize the hardware */
2249static int at76_init_new_device(struct at76_priv *priv,
2250 struct usb_interface *interface)
2251{
fe348cb6
KV		 2252 struct wiphy *wiphy;
2253 size_t len;
1264b951
KV		 2254 int ret;
2255
2256 /* set up the endpoint information */
2257 /* check out the endpoints */
2258
2259 at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints",
2260 interface->cur_altsetting->desc.bNumEndpoints);
2261
2262 ret = at76_alloc_urbs(priv, interface);
2263 if (ret < 0)
2264 goto exit;
2265
2266 /* MAC address */
2267 ret = at76_get_hw_config(priv);
2268 if (ret < 0) {
2269 dev_printk(KERN_ERR, &interface->dev,
2270 "cannot get MAC address\n");
2271 goto exit;
2272 }
2273
2274 priv->domain = at76_get_reg_domain(priv->regulatory_domain);
2275
2276 priv->channel = DEF_CHANNEL;
2277 priv->iw_mode = IW_MODE_INFRA;
2278 priv->rts_threshold = DEF_RTS_THRESHOLD;
2279 priv->frag_threshold = DEF_FRAG_THRESHOLD;
2280 priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT;
2281 priv->txrate = TX_RATE_AUTO;
2282 priv->preamble_type = PREAMBLE_TYPE_LONG;
2283 priv->beacon_period = 100;
2284 priv->auth_mode = WLAN_AUTH_OPEN;
2285 priv->scan_min_time = DEF_SCAN_MIN_TIME;
2286 priv->scan_max_time = DEF_SCAN_MAX_TIME;
2287 priv->scan_mode = SCAN_TYPE_ACTIVE;
deda862e 2288 priv->device_unplugged = 0;
1264b951
KV		 2289
2290 /* mac80211 initialisation */
fe348cb6 2291 wiphy = priv->hw->wiphy;
19e8bc7f 2292 priv->hw->wiphy->max_scan_ssids = 1;
18a83659 2293 priv->hw->wiphy->max_scan_ie_len = 0;
1264b951
KV		 2294 priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
2295 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &at76_supported_band;
2296 priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
2297 IEEE80211_HW_SIGNAL_UNSPEC;
19e8bc7f 2298 priv->hw->max_signal = 100;
1264b951
KV		 2299
2300 SET_IEEE80211_DEV(priv->hw, &interface->dev);
2301 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
2302
fe348cb6
KV		 2303 len = sizeof(wiphy->fw_version);
2304 snprintf(wiphy->fw_version, len, "%d.%d.%d-%d",
2305 priv->fw_version.major, priv->fw_version.minor,
2306 priv->fw_version.patch, priv->fw_version.build);
2307
2308 wiphy->hw_version = priv->board_type;
2309
1264b951
KV		 2310 ret = ieee80211_register_hw(priv->hw);
2311 if (ret) {
2312 printk(KERN_ERR "cannot register mac80211 hw (status %d)!\n",
2313 ret);
2314 goto exit;
2315 }
2316
2317 priv->mac80211_registered = 1;
2318
a6ef92ad 2319 printk(KERN_INFO "%s: USB %s, MAC %pM, firmware %d.%d.%d-%d\n",
1264b951 2320 wiphy_name(priv->hw->wiphy),
a6ef92ad 2321 dev_name(&interface->dev), priv->mac_addr,
1264b951
KV		 2322 priv->fw_version.major, priv->fw_version.minor,
2323 priv->fw_version.patch, priv->fw_version.build);
2324 printk(KERN_INFO "%s: regulatory domain 0x%02x: %s\n",
2325 wiphy_name(priv->hw->wiphy),
2326 priv->regulatory_domain, priv->domain->name);
2327
2328exit:
2329 return ret;
2330}
2331
2332static void at76_delete_device(struct at76_priv *priv)
2333{
2334 at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__);
2335
2336 /* The device is gone, don't bother turning it off */
2337 priv->device_unplugged = 1;
2338
deda862e 2339 tasklet_kill(&priv->rx_tasklet);
1264b951 2340
64344d78 2341 if (priv->mac80211_registered)
deda862e 2342 ieee80211_unregister_hw(priv->hw);
1264b951
KV		 2343
2344 if (priv->tx_urb) {
2345 usb_kill_urb(priv->tx_urb);
2346 usb_free_urb(priv->tx_urb);
2347 }
2348 if (priv->rx_urb) {
2349 usb_kill_urb(priv->rx_urb);
2350 usb_free_urb(priv->rx_urb);
2351 }
2352
2353 at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__);
2354
deda862e
JA		 2355 kfree(priv->bulk_out_buffer);
2356
1cc198fe
JA		 2357 del_timer_sync(&ledtrig_tx_timer);
2358
54cb2284 2359 kfree_skb(priv->rx_skb);
1264b951
KV		 2360
2361 usb_put_dev(priv->udev);
2362
2363 at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw",
2364 __func__);
2365 ieee80211_free_hw(priv->hw);
2366
2367 at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__);
2368}
2369
2370static int at76_probe(struct usb_interface *interface,
2371 const struct usb_device_id *id)
2372{
2373 int ret;
2374 struct at76_priv *priv;
2375 struct fwentry *fwe;
2376 struct usb_device *udev;
2377 int op_mode;
2378 int need_ext_fw = 0;
2379 struct mib_fw_version fwv;
2380 int board_type = (int)id->driver_info;
2381
2382 udev = usb_get_dev(interface_to_usbdev(interface));
2383
2384 /* Load firmware into kernel memory */
2385 fwe = at76_load_firmware(udev, board_type);
2386 if (!fwe) {
2387 ret = -ENOENT;
2388 goto error;
2389 }
2390
2391 op_mode = at76_get_op_mode(udev);
2392
2393 at76_dbg(DBG_DEVSTART, "opmode %d", op_mode);
2394
2395 /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ???
2396 we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */
2397
2398 if (op_mode == OPMODE_HW_CONFIG_MODE) {
2399 dev_printk(KERN_ERR, &interface->dev,
2400 "cannot handle a device in HW_CONFIG_MODE\n");
2401 ret = -EBUSY;
2402 goto error;
2403 }
2404
2405 if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH
2406 && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) {
2407 /* download internal firmware part */
2408 dev_printk(KERN_DEBUG, &interface->dev,
2409 "downloading internal firmware\n");
2410 ret = at76_load_internal_fw(udev, fwe);
2411 if (ret < 0) {
2412 dev_printk(KERN_ERR, &interface->dev,
2413 "error %d downloading internal firmware\n",
2414 ret);
2415 goto error;
2416 }
2417 usb_put_dev(udev);
2418 return ret;
2419 }
2420
2421 /* Internal firmware already inside the device. Get firmware
2422 * version to test if external firmware is loaded.
2423 * This works only for newer firmware, e.g. the Intersil 0.90.x
2424 * says "control timeout on ep0in" and subsequent
2425 * at76_get_op_mode() fail too :-( */
2426
2427 /* if version >= 0.100.x.y or device with built-in flash we can
2428 * query the device for the fw version */
2429 if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100)
2430 || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) {
2431 ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv));
2432 if (ret < 0 || (fwv.major | fwv.minor) == 0)
2433 need_ext_fw = 1;
2434 } else
2435 /* No way to check firmware version, reload to be sure */
2436 need_ext_fw = 1;
2437
2438 if (need_ext_fw) {
2439 dev_printk(KERN_DEBUG, &interface->dev,
2440 "downloading external firmware\n");
2441
2442 ret = at76_load_external_fw(udev, fwe);
2443 if (ret)
2444 goto error;
2445
2446 /* Re-check firmware version */
2447 ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv));
2448 if (ret < 0) {
2449 dev_printk(KERN_ERR, &interface->dev,
2450 "error %d getting firmware version\n", ret);
2451 goto error;
2452 }
2453 }
2454
2455 priv = at76_alloc_new_device(udev);
2456 if (!priv) {
2457 ret = -ENOMEM;
2458 goto error;
2459 }
2460
2461 usb_set_intfdata(interface, priv);
2462
2463 memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version));
2464 priv->board_type = board_type;
2465
2466 ret = at76_init_new_device(priv, interface);
2467 if (ret < 0)
2468 at76_delete_device(priv);
2469
2470 return ret;
2471
2472error:
2473 usb_put_dev(udev);
2474 return ret;
2475}
2476
2477static void at76_disconnect(struct usb_interface *interface)
2478{
2479 struct at76_priv *priv;
2480
2481 priv = usb_get_intfdata(interface);
2482 usb_set_intfdata(interface, NULL);
2483
2484 /* Disconnect after loading internal firmware */
2485 if (!priv)
2486 return;
2487
2488 printk(KERN_INFO "%s: disconnecting\n", wiphy_name(priv->hw->wiphy));
2489 at76_delete_device(priv);
2490 dev_printk(KERN_INFO, &interface->dev, "disconnected\n");
2491}
2492
2493/* Structure for registering this driver with the USB subsystem */
2494static struct usb_driver at76_driver = {
2495 .name = DRIVER_NAME,
2496 .probe = at76_probe,
2497 .disconnect = at76_disconnect,
2498 .id_table = dev_table,
2499};
2500
2501static int __init at76_mod_init(void)
2502{
2503 int result;
2504
2505 printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n");
2506
2507 mutex_init(&fw_mutex);
2508
2509 /* register this driver with the USB subsystem */
2510 result = usb_register(&at76_driver);
2511 if (result < 0)
2512 printk(KERN_ERR DRIVER_NAME
2513 ": usb_register failed (status %d)\n", result);
2514
2515 led_trigger_register_simple("at76_usb-tx", &ledtrig_tx);
2516 return result;
2517}
2518
2519static void __exit at76_mod_exit(void)
2520{
2521 int i;
2522
2523 printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n");
2524 usb_deregister(&at76_driver);
2525 for (i = 0; i < ARRAY_SIZE(firmwares); i++) {
2526 if (firmwares[i].fw)
2527 release_firmware(firmwares[i].fw);
2528 }
2529 led_trigger_unregister_simple(ledtrig_tx);
2530}
2531
2ce4f9d8 2532module_param_named(debug, at76_debug, uint, 0600);
1264b951
KV		 2533MODULE_PARM_DESC(debug, "Debugging level");
2534
2535module_init(at76_mod_init);
2536module_exit(at76_mod_exit);
2537
2538MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>");
2539MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>");
2540MODULE_AUTHOR("Alex <alex@foogod.com>");
2541MODULE_AUTHOR("Nick Jones");
2542MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>");
2543MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>");
2544MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>");
2545MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>");
a185045c 2546MODULE_AUTHOR("Sebastian Smolorz <sesmo@gmx.net>");
1264b951
KV		 2547MODULE_DESCRIPTION(DRIVER_DESC);
2548MODULE_LICENSE("GPL");
Clone of davem's net-next-2.6 tree